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<head><meta charset="utf-8"><title>weekly meeting 2020-05-07 #54818 · t-compiler · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/index.html">t-compiler</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html">weekly meeting 2020-05-07 #54818</a></h3>

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<a name="196680251"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196680251" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196680251">(May 06 2020 at 18:54)</a>:</h4>
<p>Hi <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span>; the triage meeting will be starting in ~ 19 hours</p>



<a name="196680376"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196680376" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196680376">(May 06 2020 at 18:55)</a>:</h4>
<p>The <span class="user-group-mention" data-user-group-id="2403">@WG-prioritization</span> will be doing pre-triage in <a class="stream-topic" data-stream-id="227806" href="/#narrow/stream/227806-t-compiler.2Fwg-prioritization/topic/pre-meeting.20triage.202020-05-07.20.2354818">#t-compiler/wg-prioritization &gt; pre-meeting triage 2020-05-07 #54818</a></p>



<a name="196680415"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196680415" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196680415">(May 06 2020 at 18:55)</a>:</h4>
<p>During pre-triage we will be preparing the <a href="https://hackmd.io/CEVZBzg7T8OmQaIeLf6GTw?view" title="https://hackmd.io/CEVZBzg7T8OmQaIeLf6GTw?view">meeting agenda</a></p>



<a name="196680513"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196680513" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196680513">(May 06 2020 at 18:56)</a>:</h4>
<p>We will have checkins from <span class="user-group-mention" data-user-group-id="1060">@WG-rls2.0</span> and <span class="user-group-mention" data-user-group-id="1123">@WG-self-profile</span></p>



<a name="196680644"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196680644" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196680644">(May 06 2020 at 18:57)</a>:</h4>
<p><span class="user-mention" data-user-id="133169">@matklad</span>do you have something you want to share about <span class="user-group-mention" data-user-group-id="1060">@WG-rls2.0</span>?</p>



<a name="196680675"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196680675" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196680675">(May 06 2020 at 18:57)</a>:</h4>
<p><span class="user-mention" data-user-id="125250">@Wesley Wiser</span> do you have something you want to share about <span class="user-group-mention" data-user-group-id="1123">@WG-self-profile</span>?</p>



<a name="196680725"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196680725" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196680725">(May 06 2020 at 18:58)</a>:</h4>
<p>Sure!</p>



<a name="196759828"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196759828" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196759828">(May 07 2020 at 11:58)</a>:</h4>
<p>will do!</p>



<a name="196769592"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196769592" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196769592">(May 07 2020 at 13:28)</a>:</h4>
<p>Hi <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span>, triage meeting will be starting in ~ 30 minutes</p>



<a name="196769599"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196769599" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196769599">(May 07 2020 at 13:28)</a>:</h4>
<p><a href="https://hackmd.io/CEVZBzg7T8OmQaIeLf6GTw?view" title="https://hackmd.io/CEVZBzg7T8OmQaIeLf6GTw?view">Check out the meeting agenda</a></p>



<a name="196774314"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774314" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774314">(May 07 2020 at 14:01)</a>:</h4>
<p>Hi <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span>! Add a <span aria-label="wave" class="emoji emoji-1f44b" role="img" title="wave">:wave:</span> emoji to show you're here :)</p>



<a name="196774331"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774331" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774331">(May 07 2020 at 14:01)</a>:</h4>
<p>we will start off with 5 minutes for ...</p>
<h2>Announcements</h2>



<a name="196774407"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774407" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774407">(May 07 2020 at 14:02)</a>:</h4>
<ul>
<li>Today we are making a point release, 1.43.1 <span aria-label="tada" class="emoji emoji-1f389" role="img" title="tada">:tada:</span></li>
</ul>



<a name="196774422"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774422" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774422">(May 07 2020 at 14:02)</a>:</h4>
<ul>
<li>Remember to fill State of the Compiler Team form by end of today (Thursday). Niko and Felix need time to review before Friday's steering meeting. (You should have links to separate non-anonymous and anonymized feedback forms in your email.)</li>
</ul>



<a name="196774456"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774456" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774456">(May 07 2020 at 14:02)</a>:</h4>
<ul>
<li>On friday we have our <a href="https://forge.rust-lang.org/compiler/steering-meeting.html" title="https://forge.rust-lang.org/compiler/steering-meeting.html">Compiler Team Planning meeting</a>.</li>
<li>There is 1 major change proposal<ul>
<li>"intern predicates, introduce forall/implies" <a href="https://github.com/rust-lang/compiler-team/issues/285" title="https://github.com/rust-lang/compiler-team/issues/285">#285</a></li>
</ul>
</li>
</ul>



<a name="196774564"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774564" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774564">(May 07 2020 at 14:03)</a>:</h4>
<p>(is there anyone here who doesn't know what I'm referencing by the "State of the Compiler Team form" ? Feel free to speak up, or to PM if you prefer)</p>



<a name="196774603"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774603" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774603">(May 07 2020 at 14:03)</a>:</h4>
<blockquote>
<p>On friday we have our Compiler Team Planning meeting.</p>
</blockquote>
<p>Have the need to fix this because I redacted it yesterday and may look confusing, to be clear the meeting is <strong>tomorrow</strong> friday 8th</p>



<a name="196774885"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774885" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774885">(May 07 2020 at 14:05)</a>:</h4>
<p>there is 1 <strong>new</strong> major change proposal, I guess that means</p>



<a name="196774972"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774972" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774972">(May 07 2020 at 14:06)</a>:</h4>
<p>yeah</p>



<a name="196774975"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774975" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774975">(May 07 2020 at 14:06)</a>:</h4>
<p>however</p>



<a name="196774980"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774980" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774980">(May 07 2020 at 14:06)</a>:</h4>
<p>I think that is incomplete</p>



<a name="196774983"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774983" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774983">(May 07 2020 at 14:06)</a>:</h4>
<p>I'm now wondering if we shuold post every MCP that has not been seconded</p>



<a name="196774986"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774986" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774986">(May 07 2020 at 14:06)</a>:</h4>
<p>for example, there are two in FCP</p>



<a name="196774999"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196774999" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196774999">(May 07 2020 at 14:06)</a>:</h4>
<p>actually 4</p>



<a name="196775022"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775022" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775022">(May 07 2020 at 14:06)</a>:</h4>
<p>until they are either declined or seconded?</p>



<a name="196775034"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775034" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775034">(May 07 2020 at 14:06)</a>:</h4>
<p>or maybe some of those already completed and we need to move</p>



<a name="196775049"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775049" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775049">(May 07 2020 at 14:06)</a>:</h4>
<p>but we should definitely be announcing them</p>



<a name="196775086"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775086" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775086">(May 07 2020 at 14:06)</a>:</h4>
<ul>
<li>Inline assembly <a href="https://github.com/rust-lang/compiler-team/issues/280" title="https://github.com/rust-lang/compiler-team/issues/280">compiler-team#280</a></li>
</ul>



<a name="196775107"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775107" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775107">(May 07 2020 at 14:07)</a>:</h4>
<ul>
<li>Implement LLVM-compatible source-based code coverage <a href="https://github.com/rust-lang/compiler-team/issues/278" title="https://github.com/rust-lang/compiler-team/issues/278">compiler-team#278</a></li>
</ul>



<a name="196775137"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775137" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775137">(May 07 2020 at 14:07)</a>:</h4>
<p>Move <code>src/test/run-fail</code> tests to UI <a href="https://github.com/rust-lang/compiler-team/issues/274" title="https://github.com/rust-lang/compiler-team/issues/274">compiler-team#274</a>  -- I think this should be considered "accepted"</p>



<a name="196775172"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775172" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775172">(May 07 2020 at 14:07)</a>:</h4>
<p>oh, that's it, <a href="https://github.com/rust-lang/compiler-team/issues/272" title="https://github.com/rust-lang/compiler-team/issues/272">compiler-team#272</a> is a dummy</p>



<a name="196775193"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775193" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775193">(May 07 2020 at 14:07)</a>:</h4>
<p>I am reminded I wanted to update and merge the RFC about these..</p>



<a name="196775202"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775202" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775202">(May 07 2020 at 14:07)</a>:</h4>
<p>but definitely check out those first two :)</p>



<a name="196775208"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775208" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775208">(May 07 2020 at 14:07)</a>:</h4>
<p>these two were announced already but maybe we should define how to announce this, going to create a topic to discuss this</p>



<a name="196775211"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775211" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775211">(May 07 2020 at 14:07)</a>:</h4>
<p>okay. <span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> and I will work on revising the agenda template</p>



<a name="196775268"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775268" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775268">(May 07 2020 at 14:08)</a>:</h4>
<p>sorry, maybe I was just confused :) but can't hurt to announce again</p>



<a name="196775286"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775286" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775286">(May 07 2020 at 14:08)</a>:</h4>
<p>yeah I don't think it hurts to remind people</p>



<a name="196775423"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775423" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775423">(May 07 2020 at 14:09)</a>:</h4>
<p>(meta-thought: I was just about to say "it doesn't hurt to repeatedly mention it, since the intention is not to open up immediate discussion." but then I realized: If the intention <em>isn't</em> to open up discussion, then why mention it at the synchronous meeting?)</p>



<a name="196775437"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775437" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775437">(May 07 2020 at 14:09)</a>:</h4>
<p>people are looking</p>



<a name="196775441"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775441" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775441">(May 07 2020 at 14:09)</a>:</h4>
<p>I'll have to think more about that later.</p>



<a name="196775513"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775513" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775513">(May 07 2020 at 14:10)</a>:</h4>
<p>anyway that's all the announcements</p>



<a name="196775583"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775583" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775583">(May 07 2020 at 14:10)</a>:</h4>
<p>oh, well there's one more semi-announcement</p>



<a name="196775609"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775609" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775609">(May 07 2020 at 14:11)</a>:</h4>
<p>I did a bunch of unilateral beta-acceptances over the last week:</p>



<a name="196775623"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775623" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775623">(May 07 2020 at 14:11)</a>:</h4>
<h2>Beta-acceptances from past week</h2>
<ul>
<li>"fix error code in E0751.md" <a href="https://github.com/rust-lang/rust/pull/71426" title="https://github.com/rust-lang/rust/pull/71426">#71426</a> was unlaterally beta-accepted by @pnkfelix</li>
<li>"resolve: Relax fresh binding disambiguation slightly to fix regression" <a href="https://github.com/rust-lang/rust/pull/71846" title="https://github.com/rust-lang/rust/pull/71846">#71846</a> was unilaterally beta-accepted by @pnkfelix </li>
<li>"Do not try to find binop method on RHS <code>TyErr</code>" <a href="https://github.com/rust-lang/rust/pull/71810" title="https://github.com/rust-lang/rust/pull/71810">#71810</a> was unilaterally beta-accepted by @pnkfelix</li>
</ul>



<a name="196775659"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775659" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775659">(May 07 2020 at 14:11)</a>:</h4>
<p>leaving us with just a single beta-nomination to synchronously discuss</p>



<a name="196775693"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775693" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775693">(May 07 2020 at 14:11)</a>:</h4>
<h2>Beta-nominations</h2>
<p><a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=label%3Abeta-nominated+label%3AT-compiler" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=label%3Abeta-nominated+label%3AT-compiler">T-compiler beta noms</a></p>
<ul>
<li>"Update the <code>cc</code> crate" <a href="https://github.com/rust-lang/rust/pull/71882" title="https://github.com/rust-lang/rust/pull/71882">#71882</a></li>
</ul>



<a name="196775804"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775804" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775804">(May 07 2020 at 14:12)</a>:</h4>
<p>often I'd just unilaterally accept a version update</p>



<a name="196775820"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775820" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775820">(May 07 2020 at 14:12)</a>:</h4>
<p>but I wasn't clear on how risky this one was</p>



<a name="196775952"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196775952" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196775952">(May 07 2020 at 14:13)</a>:</h4>
<p>and so I wanted to take people's temperature on whether it was worth backporting</p>



<a name="196776070"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776070" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776070">(May 07 2020 at 14:13)</a>:</h4>
<p>so far the votes seem pretty clear....</p>



<a name="196776078"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776078" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776078">(May 07 2020 at 14:13)</a>:</h4>
<p><span class="user-mention" data-user-id="116015">@Alex Crichton</span> writes</p>
<blockquote>
<p>Given bugs like <a href="https://github.com/alexcrichton/cc-rs/issues/493" title="https://github.com/alexcrichton/cc-rs/issues/493">alexcrichton/cc-rs#493</a> I think this may also be a good candidate for backporting since it should be pretty low-risk and may be good to accelerate getting this out to users.</p>
</blockquote>



<a name="196776189"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776189" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776189">(May 07 2020 at 14:14)</a>:</h4>
<p>yeah. I just had a hard time processing the diff that <span class="user-mention" data-user-id="116122">@simulacrum</span> pointed at</p>



<a name="196776323"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776323" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776323">(May 07 2020 at 14:15)</a>:</h4>
<p>anyway looks like everyones cool with a backport</p>



<a name="196776345"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776345" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776345">(May 07 2020 at 14:15)</a>:</h4>
<p>(true, I did too :)</p>



<a name="196776349"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776349" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776349">(May 07 2020 at 14:15)</a>:</h4>
<p>so beta-accepted, sounds great</p>



<a name="196776370"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776370" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776370">(May 07 2020 at 14:15)</a>:</h4>
<p>but I think it's ok</p>



<a name="196776552"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776552" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776552">(May 07 2020 at 14:16)</a>:</h4>
<p>okay. there weren't any stable-noms nor any PR's marked S-waiting-on-team</p>



<a name="196776589"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776589" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776589">(May 07 2020 at 14:16)</a>:</h4>
<h2>Issues of Note</h2>
<h3>Short Summary</h3>
<ul>
<li><a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-critical+" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-critical+">1 P-critical issues</a><ul>
<li><a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-critical+no%3Aassignee" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-critical+no%3Aassignee">0 of those are unassigned</a></li>
</ul>
</li>
<li><a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+">40 P-high issues</a><ul>
<li><a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+no%3Aassignee" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+no%3Aassignee">20 of those are unassigned</a></li>
</ul>
</li>
<li><a href="https://github.com/rust-lang/rust/labels/regression-from-stable-to-beta" title="https://github.com/rust-lang/rust/labels/regression-from-stable-to-beta">1 P-high, 4 P-medium, 1 P-low regression-from-stable-to-beta</a><ul>
<li>The only assigned is the P-high one.</li>
</ul>
</li>
<li><a href="https://github.com/rust-lang/rust/labels/regression-from-stable-to-nightly" title="https://github.com/rust-lang/rust/labels/regression-from-stable-to-nightly">1 P-high, 3 P-medium, 1 P-low regression-from-stable-to-nightly</a><ul>
<li>The only assigned is the P-high one.</li>
</ul>
</li>
<li><a href="https://github.com/rust-lang/rust/labels/regression-from-stable-to-stable" title="https://github.com/rust-lang/rust/labels/regression-from-stable-to-stable">69 regression-from-stable-to-stable</a><ul>
<li><a href="https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3Aregression-from-stable-to-stable+-label%3AP-critical+-label%3AP-high+-label%3AP-medium+-label%3AP-low" title="https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3Aregression-from-stable-to-stable+-label%3AP-critical+-label%3AP-high+-label%3AP-medium+-label%3AP-low">24 of those are not prioritized</a>.</li>
</ul>
</li>
</ul>
<p>There are 1 less <code>P-critical</code> issues and 2 less <code>P-high</code> issues in comparison with last week.</p>



<a name="196776652"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776652" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776652">(May 07 2020 at 14:17)</a>:</h4>
<h3>P-critical</h3>
<ul>
<li>"Unsoundness due to variance of trait objects WRT associated types" <a href="https://github.com/rust-lang/rust/issues/71550" title="https://github.com/rust-lang/rust/issues/71550">#71550</a><ul>
<li>This issue is assigned to @spastorino and has a PR open.</li>
</ul>
</li>
</ul>



<a name="196776655"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776655" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776655">(May 07 2020 at 14:17)</a>:</h4>
<p><code>P-high</code> issues are consistently going down!</p>



<a name="196776722"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776722" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776722">(May 07 2020 at 14:17)</a>:</h4>
<p>So I wanted to pause here and try to get some feedback</p>



<a name="196776834"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776834" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776834">(May 07 2020 at 14:18)</a>:</h4>
<p><span class="user-group-mention" data-user-group-id="2403">@WG-prioritization</span> noted that the agenda this week was going to be light, and so it would make sense to try to discuss some things that we often don't have time for</p>



<a name="196776877"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776877" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776877">(May 07 2020 at 14:18)</a>:</h4>
<p>and the basic debate, if you can call it that, was</p>



<a name="196776922"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776922" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776922">(May 07 2020 at 14:18)</a>:</h4>
<p>which is more important for us to discuss (slash trying to find volunteers to address)</p>



<a name="196776941"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776941" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776941">(May 07 2020 at 14:18)</a>:</h4>
<p>between:</p>



<a name="196776967"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776967" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776967">(May 07 2020 at 14:19)</a>:</h4>
<ol>
<li>unassigned P-medium stable-to-beta regressions, or</li>
</ol>



<a name="196776985"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196776985" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196776985">(May 07 2020 at 14:19)</a>:</h4>
<ol start="2">
<li>unassigned P-high issues ?</li>
</ol>



<a name="196777015"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777015" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777015">(May 07 2020 at 14:19)</a>:</h4>
<p>here's an emoji vote</p>



<a name="196777063"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777063" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777063">(May 07 2020 at 14:19)</a>:</h4>
<p>(hmm I thought there were numbers available)</p>



<a name="196777152"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777152" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777152">(May 07 2020 at 14:20)</a>:</h4>
<p>I'll just use thumbs instead</p>



<a name="196777188"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777188" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777188">(May 07 2020 at 14:20)</a>:</h4>
<p>For the purposes of this meeting, I decided I'd rather try to solicit volunteers to take on unassigned P-high issues</p>



<a name="196777241"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777241" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777241">(May 07 2020 at 14:20)</a>:</h4>
<p>I'm not sure what makes a stable-to-beta regression "p-medium", I guess</p>



<a name="196777297"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777297" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777297">(May 07 2020 at 14:21)</a>:</h4>
<p>something that we're willing to accept as breakage, I think</p>



<a name="196777305"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777305" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777305">(May 07 2020 at 14:21)</a>:</h4>
<p>(I voted but I'd be curious if there's a "capsule summary" of the case for P-medium stable-to-beta regressions)</p>



<a name="196777344"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777344" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777344">(May 07 2020 at 14:21)</a>:</h4>
<p>i.e., it seems sort of like "we would've called it p-high if it was more important" :)</p>



<a name="196777349"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777349" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777349">(May 07 2020 at 14:21)</a>:</h4>
<p>take a look: <a href="https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3Aregression-from-stable-to-beta+label%3AP-medium" title="https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3Aregression-from-stable-to-beta+label%3AP-medium">https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3Aregression-from-stable-to-beta+label%3AP-medium</a></p>



<a name="196777379"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777379" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777379">(May 07 2020 at 14:21)</a>:</h4>
<p>so a personal opinion, when I see that something is a regression I kind of bump up a bit my rating</p>



<a name="196777445"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777445" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777445">(May 07 2020 at 14:22)</a>:</h4>
<p>with that reasoning P-high things would be preferred</p>



<a name="196777467"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777467" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777467">(May 07 2020 at 14:22)</a>:</h4>
<p>although maybe I'd like to see this one fixed: "<code>forbid</code> overwritten by later <code>allow</code> on the same "scope level"" <a href="https://github.com/rust-lang/rust/issues/70819" title="https://github.com/rust-lang/rust/issues/70819">#70819</a></p>



<a name="196777597"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777597" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777597">(May 07 2020 at 14:23)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116266">Santiago Pastorino</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818/near/196777445" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818/near/196777445">said</a>:</p>
<blockquote>
<p>with that reasoning P-high things would be preferred</p>
</blockquote>
<p>because if it's a regression and <code>P-medium</code> it's probably not really important, but I have no idea if all <code>P-medium</code> regressions are rated using that logic</p>



<a name="196777619"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777619" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777619">(May 07 2020 at 14:23)</a>:</h4>
<p>I guess I should have listed each individually to allow some discussion</p>



<a name="196777621"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777621" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777621">(May 07 2020 at 14:23)</a>:</h4>
<p>but anyway</p>



<a name="196777640"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777640" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777640">(May 07 2020 at 14:23)</a>:</h4>
<p>the whole point was that I <em>didn't</em> think we should jump into them in this meeting</p>



<a name="196777661"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777661" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777661">(May 07 2020 at 14:23)</a>:</h4>
<p>and listing them individually would defeat that. :)</p>



<a name="196777779"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777779" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777779">(May 07 2020 at 14:24)</a>:</h4>
<p>Anyway lets look at the unassigned P-high issues</p>



<a name="196777782"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777782" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777782">(May 07 2020 at 14:24)</a>:</h4>
<p>that I picked</p>



<a name="196777810"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777810" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777810">(May 07 2020 at 14:24)</a>:</h4>
<p>(I chose the ones that are non-ICE's that are not marked E-needs-mcve)</p>



<a name="196777869"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777869" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777869">(May 07 2020 at 14:25)</a>:</h4>
<p>or wait</p>



<a name="196777877"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777877" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777877">(May 07 2020 at 14:25)</a>:</h4>
<p>all I did was nominate them</p>



<a name="196777893"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777893" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777893">(May 07 2020 at 14:25)</a>:</h4>
<p>so we will just go through the nominated issues now</p>



<a name="196777921"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777921" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777921">(May 07 2020 at 14:25)</a>:</h4>
<p>and you'll see which ones are the one's I threw on the list. :)</p>



<a name="196777940"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777940" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777940">(May 07 2020 at 14:25)</a>:</h4>
<h2>Nominated Issues</h2>
<p><a href="https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3AI-nominated+label%3AT-compiler" title="https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3AI-nominated+label%3AT-compiler">T-compiler I-nominated</a></p>



<a name="196777948"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196777948" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196777948">(May 07 2020 at 14:25)</a>:</h4>
<ul>
<li>"Unsoundness due to variance of trait objects WRT associated types" <a href="https://github.com/rust-lang/rust/issues/71550" title="https://github.com/rust-lang/rust/issues/71550">#71550</a></li>
</ul>



<a name="196778024"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778024" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778024">(May 07 2020 at 14:26)</a>:</h4>
<p>oh I guess we can drop the nomination here?</p>



<a name="196778038"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778038" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778038">(May 07 2020 at 14:26)</a>:</h4>
<p>yes</p>



<a name="196778074"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778074" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778074">(May 07 2020 at 14:26)</a>:</h4>
<ul>
<li>"Rustc overflow its stack when using impl Trait and the struct containing the function itself" <a href="https://github.com/rust-lang/rust/issues/69096" title="https://github.com/rust-lang/rust/issues/69096">#69096</a></li>
</ul>



<a name="196778142"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778142" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778142">(May 07 2020 at 14:27)</a>:</h4>
<p>so this is an example of an unassigned P-high issue</p>



<a name="196778293"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778293" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778293">(May 07 2020 at 14:28)</a>:</h4>
<p>regressed in 1.30.0, so a long time back, causes a segfault</p>



<a name="196778390"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778390" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778390">(May 07 2020 at 14:29)</a>:</h4>
<p>I'm confused though</p>



<a name="196778412"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778412" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778412">(May 07 2020 at 14:29)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> 's notes from mid February</p>



<a name="196778445"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778445" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778445">(May 07 2020 at 14:29)</a>:</h4>
<p>indicate that this was stack overflowing from the beginning?</p>



<a name="196778595"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778595" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778595">(May 07 2020 at 14:30)</a>:</h4>
<p>(that the cases that were compiling were false-negatives because godbolt was compiling in library mode)</p>



<a name="196778635"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778635" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778635">(May 07 2020 at 14:30)</a>:</h4>
<p>yeah that causes non-pub functions to not be codegen'd</p>



<a name="196778686"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778686" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778686">(May 07 2020 at 14:30)</a>:</h4>
<p>so this never actually regressed</p>



<a name="196778688"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778688" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778688">(May 07 2020 at 14:30)</a>:</h4>
<p>oh, I see</p>



<a name="196778695"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778695" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778695">(May 07 2020 at 14:31)</a>:</h4>
<p>so my first question: Is this really P-high ?</p>



<a name="196778734"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778734" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778734">(May 07 2020 at 14:31)</a>:</h4>
<p>I'm tempted to reclassify as P-medium and let it go</p>



<a name="196778737"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778737" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778737">(May 07 2020 at 14:31)</a>:</h4>
<p>I think "no"</p>



<a name="196778758"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778758" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778758">(May 07 2020 at 14:31)</a>:</h4>
<p>okay cool. lets move on then</p>



<a name="196778934"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196778934" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196778934">(May 07 2020 at 14:32)</a>:</h4>
<ul>
<li>"rust-lld since 1.38 overlaps .text with .rodata for embedded arm target" <a href="https://github.com/rust-lang/rust/issues/65391" title="https://github.com/rust-lang/rust/issues/65391">#65391</a></li>
</ul>



<a name="196779136"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779136" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779136">(May 07 2020 at 14:34)</a>:</h4>
<p>a user says they have a RISC-V repro</p>



<a name="196779180"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779180" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779180">(May 07 2020 at 14:34)</a>:</h4>
<p>which makes this interesting because it implies the bug may be target agnostic</p>



<a name="196779181"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779181" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779181">(May 07 2020 at 14:34)</a>:</h4>
<p>it seems like this bug is in lld?</p>



<a name="196779228"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779228" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779228">(May 07 2020 at 14:35)</a>:</h4>
<p>that is indeed a question: Is there an upstream bug filed against lld?</p>



<a name="196779363"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779363" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779363">(May 07 2020 at 14:35)</a>:</h4>
<p>oh the user says their repro works on x86 too</p>



<a name="196779414"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779414" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779414">(May 07 2020 at 14:36)</a>:</h4>
<p>okay you know what, I'll take a look at it then</p>



<a name="196779436"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779436" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779436">(May 07 2020 at 14:36)</a>:</h4>
<p>(that said, this <a href="https://github.com/rust-lang/rust/issues/65391#issuecomment-545157883" title="https://github.com/rust-lang/rust/issues/65391#issuecomment-545157883">comment</a> by <span class="user-mention" data-user-id="263083">@Daniel Egger</span> might suggest the problem is in rust-lld..? I can't quite tell.)</p>



<a name="196779437"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779437" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779437">(May 07 2020 at 14:36)</a>:</h4>
<p>see if I can find or file an upstream LLD bug report</p>



<a name="196779484"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779484" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779484">(May 07 2020 at 14:36)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116009">nikomatsakis</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818/near/196779436" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818/near/196779436">said</a>:</p>
<blockquote>
<p>(that said, this <a href="https://github.com/rust-lang/rust/issues/65391#issuecomment-545157883" title="https://github.com/rust-lang/rust/issues/65391#issuecomment-545157883">comment</a> by <span class="user-mention silent" data-user-id="263083">Daniel Egger</span> might suggest the problem is in rust-lld..? I can't quite tell.)</p>
</blockquote>
<p>yeah, that may be part of the problem. Which ... would put it back in our court, right?</p>



<a name="196779502"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779502" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779502">(May 07 2020 at 14:36)</a>:</h4>
<p>anyway I will self-assign.</p>



<a name="196779507"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779507" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779507">(May 07 2020 at 14:36)</a>:</h4>
<p>I don't really know who maintains rust-lld :)</p>



<a name="196779577"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779577" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779577">(May 07 2020 at 14:37)</a>:</h4>
<p>rust-lld is just "lld in the llvm submodule"</p>



<a name="196779657"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779657" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779657">(May 07 2020 at 14:38)</a>:</h4>
<p><code>lld</code> built from our <code>llvm-project</code> fork, right?</p>



<a name="196779669"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779669" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779669">(May 07 2020 at 14:38)</a>:</h4>
<p>I'll follow-up. Self-assigned <a href="https://github.com/rust-lang/rust/issues/65391" title="https://github.com/rust-lang/rust/issues/65391">#65391</a></p>



<a name="196779695"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779695" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779695">(May 07 2020 at 14:38)</a>:</h4>
<ul>
<li>"Compile-time stack overflow when trait impl contains extern crate" <a href="https://github.com/rust-lang/rust/issues/55779" title="https://github.com/rust-lang/rust/issues/55779">#55779</a></li>
</ul>



<a name="196779780"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779780" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779780">(May 07 2020 at 14:39)</a>:</h4>
<p>this sounds like something I should've followed up on :(</p>



<a name="196779791"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779791" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779791">(May 07 2020 at 14:39)</a>:</h4>
<p>yeah lld from our fork</p>



<a name="196779802"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779802" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779802">(May 07 2020 at 14:39)</a>:</h4>
<p>well "fork"</p>



<a name="196779831"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779831" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779831">(May 07 2020 at 14:39)</a>:</h4>
<p>shallow fork for backports and Rust-specific patches :P</p>



<a name="196779842"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779842" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779842">(May 07 2020 at 14:39)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> well it looked like <span class="user-mention" data-user-id="119031">@Esteban Küber</span> was going to look into it too, right?</p>



<a name="196779876"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779876" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779876">(May 07 2020 at 14:39)</a>:</h4>
<p>right but I think they might've been waiting for something from me</p>



<a name="196779884"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779884" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779884">(May 07 2020 at 14:39)</a>:</h4>
<p>(and I also said I might look at it... big collective "oh maybe <em>I</em> will..." from each of us)</p>



<a name="196779979"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196779979" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196779979">(May 07 2020 at 14:40)</a>:</h4>
<p>anyway <span class="user-mention" data-user-id="119009">@eddyb</span> would you like to take point here for the short term?</p>



<a name="196780024"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780024" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780024">(May 07 2020 at 14:41)</a>:</h4>
<p>if you do not have time then I can</p>



<a name="196780083"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780083" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780083">(May 07 2020 at 14:41)</a>:</h4>
<p>I guess I'll try</p>



<a name="196780084"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780084" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780084">(May 07 2020 at 14:41)</a>:</h4>
<p>but I figured you might have more immediate context in your ... well, maybe not mental L1 cache, but perhaps  at least your mental L3 cache</p>



<a name="196780124"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780124" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780124">(May 07 2020 at 14:41)</a>:</h4>
<p>try corrupted tape backups</p>



<a name="196780160"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780160" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Esteban Küber <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780160">(May 07 2020 at 14:41)</a>:</h4>
<p>I looked into it, but couldn't make it not regress the output</p>



<a name="196780236"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780236" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780236">(May 07 2020 at 14:42)</a>:</h4>
<p>okay assigning to <span class="user-mention" data-user-id="119009">@eddyb</span></p>



<a name="196780254"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780254" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Esteban Küber <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780254">(May 07 2020 at 14:42)</a>:</h4>
<p>Should be easy for someone with more familiarity</p>



<a name="196780286"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780286" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Esteban Küber <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780286">(May 07 2020 at 14:42)</a>:</h4>
<p>We have an indirection call there that can be direct recursion</p>



<a name="196780315"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780315" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780315">(May 07 2020 at 14:43)</a>:</h4>
<p>(supposedly <a href="https://github.com/rust-lang/rust/issues/56655" title="https://github.com/rust-lang/rust/issues/56655">#56655</a> might've helped but I don't remember why I dropped that PR)</p>



<a name="196780362"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780362" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780362">(May 07 2020 at 14:43)</a>:</h4>
<p>last nomination</p>



<a name="196780365"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780365" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780365">(May 07 2020 at 14:43)</a>:</h4>
<ul>
<li>"repr(packed) allows invalid unaligned loads" <a href="https://github.com/rust-lang/rust/issues/27060" title="https://github.com/rust-lang/rust/issues/27060">#27060</a></li>
</ul>



<a name="196780499"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780499" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780499">(May 07 2020 at 14:44)</a>:</h4>
<p>hmm this was nominated for lang team meeting</p>



<a name="196780523"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780523" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780523">(May 07 2020 at 14:44)</a>:</h4>
<p>I was going to say that, I've skipped it because of that :)</p>



<a name="196780541"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780541" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780541">(May 07 2020 at 14:44)</a>:</h4>
<p>but it was on our agenda?</p>



<a name="196780544"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780544" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780544">(May 07 2020 at 14:44)</a>:</h4>
<p>did I do that?</p>



<a name="196780566"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780566" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780566">(May 07 2020 at 14:44)</a>:</h4>
<p>anyway okay maybe I messed that up last night</p>



<a name="196780592"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780592" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780592">(May 07 2020 at 14:45)</a>:</h4>
<p>I thought you re-added because you wanted to discuss it due to lack of things :)</p>



<a name="196780598"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780598" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780598">(May 07 2020 at 14:45)</a>:</h4>
<p>great great great, done with T-compiler nominations</p>



<a name="196780614"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780614" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780614">(May 07 2020 at 14:45)</a>:</h4>
<p>so, WG checkin's!</p>



<a name="196780639"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780639" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780639">(May 07 2020 at 14:45)</a>:</h4>
<p>lets hear from <span class="user-mention" data-user-id="133169">@matklad</span> , right?</p>



<a name="196780714"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780714" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780714">(May 07 2020 at 14:46)</a>:</h4>
<p><span aria-label="thumbs up" class="emoji emoji-1f44d" role="img" title="thumbs up">:thumbs_up:</span></p>



<a name="196780778"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780778" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780778">(May 07 2020 at 14:46)</a>:</h4>
<p>Let me paste the report...</p>



<a name="196780785"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780785" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780785">(May 07 2020 at 14:46)</a>:</h4>
<p>We've opened an RFC for making rust-analyzer the official LSP server impl:</p>
<p><a href="https://github.com/rust-lang/rfcs/pull/2912" title="https://github.com/rust-lang/rfcs/pull/2912">https://github.com/rust-lang/rfcs/pull/2912</a></p>
<p><span aria-label="tada" class="emoji emoji-1f389" role="img" title="tada">:tada:</span></p>
<p>Right now, the primary focus is on closing the immediate blockers surfaced in the RFC (protocol conformance primarily).</p>
<p>Internally, the biggest change is probably switch to recursive chalk solver.<br>
It, and many other improvements everywhere now make rust-analyzer infer types correctly in most cases.<br>
Feels like a real IDE now (auto-imports are also a big part here) :-)<br>
Biggest missing pieces are type inference around <code>impl Trait</code>, supertraits of <code>dyn Trait</code> and <code>.await</code>.</p>
<p>We also added initial support for procedural macros, and can expand derives (though the feature is disabled by default). This works on quasi-stable -- we copy-paste proc-macro server crate into rust-analyzer, and use the current ABI to load proc macros. Macros are executed in separate process, to avoid bringing down the whole IDE if the macro aborts.</p>



<a name="196780862"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780862" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780862">(May 07 2020 at 14:46)</a>:</h4>
<p>Oh, the tracking issue for tracking RFC blockers is <a href="https://github.com/rust-analyzer/rust-analyzer/issues/4224" title="https://github.com/rust-analyzer/rust-analyzer/issues/4224">https://github.com/rust-analyzer/rust-analyzer/issues/4224</a></p>



<a name="196780978"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196780978" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196780978">(May 07 2020 at 14:47)</a>:</h4>
<p>some of those <del>blockers</del> missing pieces (dyn Trait supertraits...) have pending PRs related to them in chalk, I know</p>



<a name="196781088"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781088" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781088">(May 07 2020 at 14:48)</a>:</h4>
<p>To be clear, <code>dyn Trait</code> and nother type-inference failures are not really blockers, imo, type inference works ok-ish even without htme</p>



<a name="196781163"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781163" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781163">(May 07 2020 at 14:48)</a>:</h4>
<p>rahter, they are the low-hanging fruits for improving experience for thouse who already use rust-analzer</p>



<a name="196781195"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781195" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781195">(May 07 2020 at 14:48)</a>:</h4>
<p>blockers are for those, who can't use ra for whatever reason</p>



<a name="196781268"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781268" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781268">(May 07 2020 at 14:49)</a>:</h4>
<p>but <em>were</em> able to use previous RLS, right?</p>



<a name="196781292"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781292" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781292">(May 07 2020 at 14:49)</a>:</h4>
<p>yup</p>



<a name="196781336"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781336" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781336">(May 07 2020 at 14:49)</a>:</h4>
<p>Though, there's a bunch of people who can't use rls, but use rust-analyzer as well I think</p>



<a name="196781347"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781347" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781347">(May 07 2020 at 14:50)</a>:</h4>
<p>sure</p>



<a name="196781490"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781490" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781490">(May 07 2020 at 14:50)</a>:</h4>
<p>In general, in terms of "user-visible functionality", I am pretty happy about current state. I am much less happy about "two compilers" situation</p>



<a name="196781503"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781503" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781503">(May 07 2020 at 14:50)</a>:</h4>
<p>just wanted to make clear that we wouldn't block switching to RA just because, I dunno, someone is mad that it doesn't work with their fork of <code>vim</code> on their Raspberry PI</p>



<a name="196781534"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781534" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781534">(May 07 2020 at 14:51)</a>:</h4>
<p>(but we probably should switch to the other WG? Seems like I am going on a tangent :)</p>



<a name="196781552"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781552" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781552">(May 07 2020 at 14:51)</a>:</h4>
<p>yeah okay</p>



<a name="196781597"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781597" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781597">(May 07 2020 at 14:51)</a>:</h4>
<p><span class="user-mention" data-user-id="125250">@Wesley Wiser</span> posted their update for <span class="user-group-mention" data-user-group-id="1123">@WG-self-profile</span>  in the agenda, so I'll cut and paste it here.</p>



<a name="196781606"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781606" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781606">(May 07 2020 at 14:51)</a>:</h4>
<p>My update is short so if there's more to cover with ra, we can circle back.</p>



<a name="196781620"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781620" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781620">(May 07 2020 at 14:51)</a>:</h4>
<p>@<strong>WG-self-profile</strong> checkin by @<strong>Wesley Wiser</strong>:</p>
<p>Things have settled down quite a lot since the last check-in.<br>
We achieved our MVP goal and since then, lots of people have been using the tools either directly or via the perf.rlo integration.</p>
<p>I think the only major news is that we have documentation everwhere that has been requested:</p>
<p>* GitHub readme files for each individual tool.<br>
  * <code>rustc -Zhelp</code> has some short help text describing the options.<br>
  * The Unstable Book has <a href="https://doc.rust-lang.org/unstable-book/compiler-flags/self-profile.html" title="https://doc.rust-lang.org/unstable-book/compiler-flags/self-profile.html">more complete</a> documentation about the <code>-Z</code> flags.<br>
  * Rustc Dev Guide has a <a href="https://rustc-dev-guide.rust-lang.org/profiling.html" title="https://rustc-dev-guide.rust-lang.org/profiling.html">mention</a>.</p>
<p>I also wrote a rather extensive post on the <a href="https://blog.rust-lang.org/inside-rust/2020/02/25/intro-rustc-self-profile.html" title="https://blog.rust-lang.org/inside-rust/2020/02/25/intro-rustc-self-profile.html">Inside-Rust blog</a> about the tooling including a complete step-by-step tutorial.</p>
<p>While there additional polish that could be done, there are no remaining "must-have" features that I'm aware of.</p>



<a name="196781637"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781637" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781637">(May 07 2020 at 14:51)</a>:</h4>
<p>(oh, they were here!)</p>



<a name="196781718"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781718" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781718">(May 07 2020 at 14:52)</a>:</h4>
<p>No worries! Thanks for posting.</p>



<a name="196781734"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781734" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781734">(May 07 2020 at 14:52)</a>:</h4>
<p>I have a question <span class="user-mention" data-user-id="125250">@Wesley Wiser</span></p>



<a name="196781753"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781753" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781753">(May 07 2020 at 14:52)</a>:</h4>
<p>Sure</p>



<a name="196781771"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781771" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781771">(May 07 2020 at 14:52)</a>:</h4>
<p>something I hear fairly consistently is about the desire to figure out which parts of one's code are responsible for compilation time</p>



<a name="196781781"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781781" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781781">(May 07 2020 at 14:52)</a>:</h4>
<p>I remember there being some amount of work in that direction</p>



<a name="196781810"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781810" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781810">(May 07 2020 at 14:53)</a>:</h4>
<p>(and .. I think .. some requests for help (from me...eek) about accounting for time in trait solving)</p>



<a name="196781854"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781854" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781854">(May 07 2020 at 14:53)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> you mean which parts of one's source code being fed into <code>rustc</code>, right?</p>



<a name="196781859"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781859" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781859">(May 07 2020 at 14:53)</a>:</h4>
<p>but that wasn't part of MVP, right?</p>



<a name="196781895"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781895" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781895">(May 07 2020 at 14:53)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> I don't know if I understand the distinction</p>



<a name="196781914"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781914" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781914">(May 07 2020 at 14:53)</a>:</h4>
<p>vs code of <code>rustc</code> itself</p>



<a name="196781927"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781927" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781927">(May 07 2020 at 14:53)</a>:</h4>
<p>I'm mostly just wondering if there's some status update, and the status might be "yeah that's kind of stalled out" (and that seems fine)</p>



<a name="196781940"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196781940" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196781940">(May 07 2020 at 14:54)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> poke me later about trait solving stuff but that's definitely something I'm supposed to be working on</p>



<a name="196782035"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782035" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782035">(May 07 2020 at 14:54)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> ok right, i.e., if I were to edit my crate, what changes might help reduce my compilation time</p>



<a name="196782112"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782112" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782112">(May 07 2020 at 14:54)</a>:</h4>
<p>So we have support for recording query keys which means we can blame queries back to a <code>DefId</code>. I think the open question is how to represent blame because of the effects of query caching. If I have </p>
<div class="codehilite"><pre><span></span><code><span class="k">fn</span> <span class="nf">foo</span><span class="p">()</span><span class="w"> </span><span class="p">{</span><span class="w"></span>
<span class="w">  </span><span class="n">bar</span>::<span class="o">&lt;</span><span class="kt">u8</span><span class="o">&gt;</span><span class="p">();</span><span class="w"></span>
<span class="p">}</span><span class="w"></span>

<span class="k">fn</span> <span class="nf">foo2</span><span class="p">()</span><span class="w"> </span><span class="p">{</span><span class="w"></span>
<span class="w">  </span><span class="n">bar</span>::<span class="o">&lt;</span><span class="kt">u8</span><span class="o">&gt;</span><span class="p">();</span><span class="w"></span>
<span class="p">}</span><span class="w"></span>
</code></pre></div>


<p>Do we blame (for example) well formd-ness checking of <code>barr::&lt;u8&gt;()</code> on <code>foo</code> or <code>foo2</code>?</p>



<a name="196782143"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782143" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782143">(May 07 2020 at 14:55)</a>:</h4>
<p>That might be a bad specific example but I think it gets the point across.</p>



<a name="196782165"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782165" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782165">(May 07 2020 at 14:55)</a>:</h4>
<p>yeah, that's a tricky problem</p>



<a name="196782198"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782198" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782198">(May 07 2020 at 14:55)</a>:</h4>
<p>recording query keys can help today but it's hard to see them without e.g. using the Chrome profiler view</p>



<a name="196782216"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782216" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782216">(May 07 2020 at 14:55)</a>:</h4>
<p>We do have an issue for this request but no-one has come up with a good solution to that.</p>



<a name="196782224"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782224" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782224">(May 07 2020 at 14:55)</a>:</h4>
<p>and even then there's no aggregation by proximity in the source code</p>



<a name="196782253"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782253" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782253">(May 07 2020 at 14:55)</a>:</h4>
<p>you just have to get lucky with spotting an anomaly</p>



<a name="196782263"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782263" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782263">(May 07 2020 at 14:55)</a>:</h4>
<p>Yeah, that's a great point</p>



<a name="196782314"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782314" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782314">(May 07 2020 at 14:56)</a>:</h4>
<p>is there a way to at least add multiple defid's in, in response to the 2nd, 3rd, etc queries?</p>



<a name="196782328"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782328" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782328">(May 07 2020 at 14:56)</a>:</h4>
<p>i.e. be able to represent the reuse?</p>



<a name="196782349"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782349" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782349">(May 07 2020 at 14:56)</a>:</h4>
<p>(and "spread the blame", so to speak?)</p>



<a name="196782357"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782357" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782357">(May 07 2020 at 14:56)</a>:</h4>
<p>I have thoughts but, among other things, I would note that this problem doesn't affect a "flat view", so much</p>



<a name="196782384"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782384" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782384">(May 07 2020 at 14:56)</a>:</h4>
<p>i.e., just looking at self-time?</p>



<a name="196782396"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782396" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782396">(May 07 2020 at 14:56)</a>:</h4>
<p>I believe there's support for tracking query cache hits as well but last I recall it slowed down the compiler significantly</p>



<a name="196782409"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782409" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782409">(May 07 2020 at 14:56)</a>:</h4>
<p>(but maybe that is just not esp. useful in practice)</p>



<a name="196782419"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782419" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782419">(May 07 2020 at 14:56)</a>:</h4>
<p>We issue a <em>lot</em> of queries</p>



<a name="196782435"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782435" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782435">(May 07 2020 at 14:57)</a>:</h4>
<p>OTOH that (chrome profile) file is JSON and I have done some analysis using <code>jq</code> on it</p>



<a name="196782439"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782439" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782439">(May 07 2020 at 14:57)</a>:</h4>
<p>I don't mean a flat view of queries</p>



<a name="196782465"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782465" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782465">(May 07 2020 at 14:57)</a>:</h4>
<p>I mean that if you just showed (e.g.) the def-ids</p>



<a name="196782484"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782484" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782484">(May 07 2020 at 14:57)</a>:</h4>
<p>Yeah</p>



<a name="196782503"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782503" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782503">(May 07 2020 at 14:57)</a>:</h4>
<p>(like, how much time was spent in <em>any</em> query tagged with a particular def-id)</p>



<a name="196782517"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782517" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782517">(May 07 2020 at 14:57)</a>:</h4>
<p>Perhaps it's worth trying the naive thing and seeing if people actually find that useful.</p>



<a name="196782538"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782538" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782538">(May 07 2020 at 14:57)</a>:</h4>
<p>with some amount being kind of "unknown" (because it's not ascribed to a single fn)</p>



<a name="196782540"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782540" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782540">(May 07 2020 at 14:57)</a>:</h4>
<p>yeah I can do stuff like that by hand now with <code>jq</code></p>



<a name="196782625"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782625" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782625">(May 07 2020 at 14:58)</a>:</h4>
<p><span class="user-mention silent" data-user-id="125250">Wesley Wiser</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818/near/196782517" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818/near/196782517">said</a>:</p>
<blockquote>
<p>Perhaps it's worth trying the naive thing and seeing if people actually find that useful.</p>
</blockquote>
<p>I think it would be worth it, if it's not too hard</p>



<a name="196782641"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782641" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782641">(May 07 2020 at 14:58)</a>:</h4>
<p>I'm sorry, what is <code>jq</code> <span class="user-mention" data-user-id="119009">@eddyb</span> ?</p>



<a name="196782652"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782652" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782652">(May 07 2020 at 14:58)</a>:</h4>
<p>JSON query tool</p>



<a name="196782658"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782658" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782658">(May 07 2020 at 14:58)</a>:</h4>
<p>Probably not! Certainly worth a few hours <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="196782668"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782668" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782668">(May 07 2020 at 14:58)</a>:</h4>
<p>/me googles</p>



<a name="196782687"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782687" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782687">(May 07 2020 at 14:58)</a>:</h4>
<p>it's basically awk/perl one-liners but for the JSON age :P</p>



<a name="196782702"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782702" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782702">(May 07 2020 at 14:59)</a>:</h4>
<p>jq is nifty</p>



<a name="196782730"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782730" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782730">(May 07 2020 at 14:59)</a>:</h4>
<p>the other place I've used it in recently is <a href="https://www.reddit.com/r/rust/comments/g9mw57/oneliner_to_correctly_list_all_uses_ofunsafe_in/" title="https://www.reddit.com/r/rust/comments/g9mw57/oneliner_to_correctly_list_all_uses_ofunsafe_in/">https://www.reddit.com/r/rust/comments/g9mw57/oneliner_to_correctly_list_all_uses_ofunsafe_in/</a></p>



<a name="196782761"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782761" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782761">(May 07 2020 at 14:59)</a>:</h4>
<p>to filter Cargo output by lint</p>



<a name="196782774"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782774" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782774">(May 07 2020 at 14:59)</a>:</h4>
<p>/me reading <code>jq</code> home page, falls into the RIIR trap</p>



<a name="196782966"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782966" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782966">(May 07 2020 at 15:01)</a>:</h4>
<p>hup!</p>



<a name="196782974"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196782974" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196782974">(May 07 2020 at 15:01)</a>:</h4>
<p>that's an hour, folks!</p>



<a name="196783064"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196783064" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196783064">(May 07 2020 at 15:01)</a>:</h4>
<p>Thank you to everyone in <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span> for attending. And again, please do fill out those "State of the Compiler Team" surveys; they should not take long, its only like four or five questions.</p>



<a name="196783076"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196783076" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196783076">(May 07 2020 at 15:01)</a>:</h4>
<p>Stay safe, stay healthy!</p>



<a name="196783223"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196783223" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196783223">(May 07 2020 at 15:03)</a>:</h4>
<p><span class="user-mention silent" data-user-id="119009">eddyb</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818/near/196782730" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818/near/196782730">said</a>:</p>
<blockquote>
<p>the other place I've used it in recently is <a href="https://www.reddit.com/r/rust/comments/g9mw57/oneliner_to_correctly_list_all_uses_ofunsafe_in/" title="https://www.reddit.com/r/rust/comments/g9mw57/oneliner_to_correctly_list_all_uses_ofunsafe_in/">https://www.reddit.com/r/rust/comments/g9mw57/oneliner_to_correctly_list_all_uses_ofunsafe_in/</a></p>
</blockquote>
<p><code>-Funsafe-code</code> flag is awesome, best name ever <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="196783313"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196783313" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196783313">(May 07 2020 at 15:03)</a>:</h4>
<p>it's just short for "forbid" :P</p>



<a name="196783335"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196783335" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196783335">(May 07 2020 at 15:03)</a>:</h4>
<p>:P</p>



<a name="196783455"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196783455" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196783455">(May 07 2020 at 15:04)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> c'mon take credit for even the accidental puns</p>



<a name="196783477"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196783477" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196783477">(May 07 2020 at 15:04)</a>:</h4>
<p>gonna use this fun and safe code flag ... <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="196783572"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196783572" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196783572">(May 07 2020 at 15:05)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> don't make me spend two hours in git blame to find whoever added these flags back in the day,,,</p>



<a name="196783650"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196783650" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196783650">(May 07 2020 at 15:05)</a>:</h4>
<p>some people spend ages coming up with things like Libiberty to achieve such goals</p>



<a name="196784353"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196784353" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196784353">(May 07 2020 at 15:10)</a>:</h4>
<p>don't remind me I have to ping those people again because they've been ignoring my rust demangler patch for probably months now</p>



<a name="196784427"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196784427" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196784427">(May 07 2020 at 15:10)</a>:</h4>
<p>I wonder if the person who owns the demanglers part of libiberty is ok</p>



<a name="196785238"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196785238" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196785238">(May 07 2020 at 15:14)</a>:</h4>
<p>I needed to do this <a href="https://twitter.com/spastorino/status/1258414788822130689" title="https://twitter.com/spastorino/status/1258414788822130689">https://twitter.com/spastorino/status/1258414788822130689</a> sorry <span aria-label="joy" class="emoji emoji-1f602" role="img" title="joy">:joy:</span></p>
<div class="inline-preview-twitter"><div class="twitter-tweet"><a href="https://twitter.com/spastorino/status/1258414788822130689"><img class="twitter-avatar" src="https://pbs.twimg.com/profile_images/543960868589821952/6aUT2q0g_normal.jpeg"></a><p>If you want to have fun and be safe while doing Rust, remember to pass `-Funsafe-code` flag when you compile your programs.</p><span>- Santiago Pastorino (@spastorino)</span></div></div>



<a name="196786488"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-05-07%20%2354818/near/196786488" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-05-07.20.2354818.html#196786488">(May 07 2020 at 15:21)</a>:</h4>
<p>:D I saw on twitter before I saw this message</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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